Device for lubricating a big-end bearing

A device for lubricating a big-end bearing on a crankshaft of an internal combustion engine, comprising:

• a piston having a fluid channel, the fluid channel comprising an internal piston cooling fluid channel, the piston further comprising an outlet channel fluidically connected to the fluid channel;
• a connecting rod connected in articulated pivotable fashion to the piston and having a small connecting rod eye, a large connecting rod eye and a connecting channel,
• a piston pin which is received in the small connecting rod eye, the piston pin pivotably connecting the connecting rod to the piston, and having a fluid chamber formed as a continuous bore having end sides and which forms a fluidic connection between the outlet channel and the connecting channel;
• at least one fluid guidance element extending from one of the end sides of the piston pin and which is arranged below an outlet opening of the outlet channel of the piston and via which the fluid is received from the outlet channel and can be supplied to the fluid chamber of the piston pin;
• wherein:
• the large connecting rod eye is configured to receive the big-end bearing;
• the small connecting rod eye is fluidically connected to the outlet channel;
• and
• the connecting channel forms a fluidic connection between the small connecting rod eye and the large connecting rod eye so that a cooling lubricant fluid is or can be supplied from the fluid channel to the large connecting rod eye via the outlet channel, the small connecting rod eye and the connecting channel.